Generator field coil insulating wrap
Moto Guzzi V700, V7 Special, Ambassador, 850 GT, 850 GT California, Eldorado, and 850 California Police models
I use 3M
Glass Cloth Electrical Tape 27 in a 1⁄2 inch width. If you are going to all the trouble to rebuild an old generator, you might as well re-wrap the field coils. It isn't difficult, but does require a bit of patience and a light touch.